Home / 1,507,118.02-2,079,702.21-862,390.42

Finding the Fourth Proportional to 1,507,118.02, 2,079,702.21 and 862,390.42

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Solution

The fourth proportional to 1,507,118.02, 2,079,702.21 and 862,390.42 is: 1,190,029.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507,118.02 : 2,079,702.21 = 862,390.42 : x
  2. Step 2: Convert to fraction form
    1,507,118.02/2,079,702.21 = 862,390.42/x
  3. Step 3: Cross multiply
    1,507,118.02x = 2,079,702.21 × 862,390.42
  4. Step 4: Simplify right side
    1,507,118.02x = 1,793,515,262,356.83
  5. Step 5: Solve for x
    x = 1,793,515,262,356.83/1,507,118.02
  6. Step 6: Final answer
    x = 1,190,029.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.